Re: C# Application Uninstaller - C# Discussion Boards

Nader Elshehabi12-Dec-06 9:27

12-Dec-06 9:27

It's impossible that your Product Code is that?!! To get your product code:
1- Open the solution explorer
2- Right Click on the name of the setup project => Properties
3- In the Property Grid look for Product Code property. Copy it.
4- Paste it in the code I supplied instead of my GUID.

SASA_1 wrote:
Also, what does /I stand for?

The "/I" is a command line argument that is passed to Windows installer. It tells the installer if you wish to modify/repair/remove you applicatino. In this case it will tell the installer that you want to remove, but don't worry; The uninstallation doesn't do it automatically. It opens up normally as you'd have clicked on the Add/Remove icon.

PS.
Did you decide how to handle closing your active application? Uninstallation won't work until you close it.

Regards

Saamir12-Dec-06 9:46

Saamir

12-Dec-06 9:46

My product code is {C53335FB-9BAA-4F41-A47C-0474249B089B} and this is what I have now for my code which doesn't work;

System.Diagnostics.Process.Start("msiexec.exe /i{C53335FB-9BAA-4F41-A47C-0474249B089B}");
this.Close();

I get an unhandled exception saying the system can't find the file specified....

Please advice

sasa

Lord Kixdemp12-Dec-06 13:34

Lord Kixdemp

12-Dec-06 13:34

I'm guessing the file doesn't exist? Go to C:\WINDOWS\system32 and try to find it there, if it is, try this instead:

System.Diagnostics.Process.Start("C:\WINDOWS\system32\msiexec.exe /i{C53335FB-9BAA-4F41-A47C-0474249B089B}");

If it's not... well, I have no idea then. Roll eyes | :rolleyes:

Good luck! Wink | ;)

Windows Calculator told me I will die at 28. Frown | :(

Nader Elshehabi12-Dec-06 17:19

12-Dec-06 17:19

Well, You can use this instead:

Process Proc = new Process();
Proc.StartInfo = new ProcessStartInfo("MsiExec.exe", "/I{23959E96-A80F-4172-A655-210E9BB7BFBE}");
Proc.Start();

PS.
Again replace that GUID with yours.

Regards

karam chandrabose12-Dec-06 22:39

karam chandrabose

12-Dec-06 22:39

if u want silent uninstallation, use /q.

Help me process sound in C# - Fast Fourier [modified]

Saamir13-Dec-06 7:16

Saamir

13-Dec-06 7:16

Thank you much man, I really really appreciate your help. I put the code in the main of the form and got it to work.

sasa

ComCoderCsharp12-Dec-06 8:17

ComCoderCsharp

12-Dec-06 8:17

Hi Everybody
I was just wondering if there is anyone who has got any experience in streaming sound using C# as well as processing it using DSP algorithms e.g. FFT, filtering...( in the same manner as done in Matlab). I would really appreciate all inputs especially since I have never done anything similar before… Maybe you know of some good articles/links or code examples...I would also like to know (if possible) what to prefer when streaming sound: C# or java...

Thanks a lot

AL

-- modified at 16:16 Tuesday 12th December, 2006

Re: Help me process sound in C# - Fast Fourier

Ravi Bhavnani12-Dec-06 10:52

Ravi Bhavnani

12-Dec-06 10:52

Will this[^] open-source DSP library help?

/ravi

Just say "No" to Celcius
Home | Music | Articles | Freeware | Trips
ravib(at)ravib(dot)com

Re: Help me process sound in C# - Fast Fourier

ComCoderCsharp13-Dec-06 2:30

ComCoderCsharp

13-Dec-06 2:30

I will look into it seems very interesting,
Thanks alot

AL

freezing the SiteMapPath?

lsugirljte12-Dec-06 8:15

lsugirljte

12-Dec-06 8:15

I'm dynamically building my web.sitemap from the database table. It has all the first and second level menu items. On these pages, there are some hyperlinks to more child pages that aren't not in the sitemap. When I drilled down to these child pages, the SiteMapPath disappears. That makes sense since that page isn't in the sitemap BUT I would like to just freeze the breadcrump with the last valid option. Basically, how can I get the SiteMapPath only to refresh (change) when a menu item is changed? Not when a hyperlink is changed?

example:
menu item 1 (in web.sitemap and appears in the SiteMapPath)
menu item 2 (in web.sitemap and appears in the SiteMapPath)
hyperlink on menu item 2 page (not in web.sitemap and SiteMapPath is blank)

For the hyperlink, I would like the SiteMapPath to display the menu item 2. Any ideas?? WTF | :WTF:

Thanks, Jessica

Change Border Colour Of the Form

sajid.salim.khan12-Dec-06 8:14

sajid.salim.khan

12-Dec-06 8:14

Hi All,
the problem is that I want to change the border colour of the form. The strip on which the maximize, minimize and close button resides.

Plz Help Me Rose | [Rose]

SAS

C# Unicode File Names. FileInfo

Dato12-Dec-06 8:02

Dato

12-Dec-06 8:02

I'm currently working on a project which requires me to read Unicode File Names. Does the FileInfo class do this ? How can I create a unicode file in order to test this..

jon

Re: C# Unicode File Names. FileInfo

Nader Elshehabi12-Dec-06 8:10

12-Dec-06 8:10

Dato wrote:
I'm currently working on a project which requires me to read Unicode File Names

I thought any program developed in C# can read unicode -unless you explicitly ask for ASCII-

Dato wrote:
Does the FileInfo class do this

Yes.

Dato wrote:
How can I create a unicode file in order to test this..

You have to use non-English caracters for that. For example; Add the eastren -e.g. chinese- languages support to your windows. Go to any chinese web site, and copy/paste some text from there -you don't have to understand it- into a file name and try to open it using your app.

Regards

Threading Question

NameYou12-Dec-06 6:56

12-Dec-06 6:56

I am developing a windows form app in C# -.net 1.1 framework.

The app creates 4 objects and executes a "Go" method in 4 threads - each thread goes off, grabs some data from a UDP socket, and processes it.

What I need is to get the processed data from each of the 4 threads (objects) and combine them into one string. I can not figure out how to get the individual threads to return anything. I tried to create a string and pass it to each object's constructor as a reference, but that went nowhere. Does anyone have any ideas on how I can accomplish this?

Dan
Senior Developer
Mitsubishi Power Systems

Now where did I put that Char....

Nader Elshehabi12-Dec-06 7:40

12-Dec-06 7:40

As long as your threads are objects inside your class, they can manipulate any field -even private ones- including strings. My suggestion to your situation is to make a string obkect inside your class. then either you:
1- Make a single common method that takes parameters passed by the calling thread to add it to the single string object
2- Access that single string object in the different methods of threads -you don't need to return- the way that suits you -this is if you got different methods for different threads. If they all start with the same method, this won't apply-.
Very important thing to note is to apply a lock on the string object to prevent threads from modifying it simultaneously.

Regards

NameYou12-Dec-06 8:25

12-Dec-06 8:25

Let me give you some psudeo code - because I'm not understanding. Here is what I am doing:

public class MainClass
{

private void GetData()
{

MyObject mo = new MyObject();
Thread t = new Thread(new ThreadStart(mo.Connect));
t.Start();

MyObject mo2 = new MyObject();
Thread t2 = new Thread(new ThreadStart(mo2.Connect));
t2.Start();

MyObject mo2 = new MyObject();
Thread t3 = new Thread(new ThreadStart(mo3.Connect));
t3.Start();

MyObject mo3 = new MyObject();
Thread t4 = new Thread(new ThreadStart(mo4.Connect));
t4.Start();

//WHAT I WANT TO DO IS BE ABLE TO GRAB THE RESULTS FROM THE THREADS STARTED ABOVE
//AND PUSH THEM INTO A FILE. I NEED ALL OF THE DATA FROM ALL FOUR THREADS COMBINED INTO ONE FILE
}

}

Public class MyObject
{
public MyObject()
{
}

public void Connect()
{
//Starts all the socket stuff..
}

//...OTHER SOCKET RELATED FUNCTIONS GO HERE.
}

How do I get the data in the Connect function to the calling function in MainClass?

uh... yeah

Nader Elshehabi12-Dec-06 8:54

12-Dec-06 8:54

NameYou wrote:
How do I get the data in the Connect function to the calling function in MainClass?

You don't need to. If there is no good reason not to access the file from that method, you should.
To be specific, here is my suggestion of you MyObject.Connect() method:

Public class MyObject
{
    public MyObject()
    {
    }

    public void Connect()
    {
        //Starts all the socket stuff..
        object LockObject = new object()
        lock(LockObject)
        {
            StreamWriter MyStream = File.AppendText("MyFile.txt");
            MyStream.WriteLine(Input);
            MyStream.Close();
        }
    }
    //...OTHER SOCKET RELATED FUNCTIONS GO HERE.
}

Of course you got to do some modifications to the code to suite your needs, but I hope this was close enough.

Regards

NameYou12-Dec-06 9:47

12-Dec-06 9:47

Ah I see what you are saying - my problem is this: then I have multiple disk IO reads, which will slow the system down compared to one. In this project, speed is absolutely necessary. Is there any way that I can write it to memory, so that I can combine the 4 results and write to the file once?

C#... king of languages

Nader Elshehabi12-Dec-06 17:11

12-Dec-06 17:11

NameYou wrote:
Is there any way that I can write it to memory

Sure! You can make a string object in Connect method, keep concatenating strings to it, then finally at the end of your data reading write the whole string to the file. It's almost the same way.
PS.
EricDV is right. You should first make the LockObject private static for the lock to work. Another way to do it is to use Mutex class instead.

Regards

NameYou13-Dec-06 2:18

13-Dec-06 2:18

OK, I understand that, but what I am getting at is that if I had the data write to a file at the end of the reading routine, that file write routine would be executed 4 times (since I have four threads) which is slower than dumping all of the read data into a buffer and then writing the buffer outside of the 4 threads - am I correct? Speed is of the essence with this procedure.

C#, king of languages

Nader Elshehabi13-Dec-06 6:16

Re: Threading Question [modified]

13-Dec-06 6:16

Again this won't hurt. It would be a matter of milliseconds. Yet, if this small time really makes a difference with you, try benchmarking your program. For example, I do it by comparing the value of DateTime.Now.Ticks before and after the procedure I'm testing. See which method would give you the most satisfying results.

PS.
If you really need speed this much, why don't you think of unmanaged code -e.g. C++-?

Regards

Eric Dahlvang12-Dec-06 10:03

Eric Dahlvang

12-Dec-06 10:03

I'm no threading expert, but I think you need to consider that NameYou is creating multiple instances of MyObject. When you create LockObject in each instance, that means that each instances Connect code has a lock -- which is different from locking that piece of code for EVERY instance. You can see the difference by comparing the following two classes:

1)This just locks the code in this instances connect method.

public class MyObject
{
    public static string cFieldVal;

    public MyObject()
    {
    }

    public void Connect()
    {
        //Starts all the socket stuff..
        object LockObject = new object();
        lock(LockObject)
        {
            MessageBox.Show(MyObject.cFieldVal);
            MyObject.cFieldVal=MyObject.cFieldVal+="x";
            //StreamWriter MyStream = File.AppendText("MyFile.txt");
            //MyStream.WriteLine(Input);
           // MyStream.Close();
        }
    }
    //...OTHER SOCKET RELATED FUNCTIONS GO HERE.
}

2)This code locks a static field, so it is locked for ~~EACH~~ EVERY instance.

public class MyObject
{

    public static string cFieldVal="";

    public MyObject()
    {
    }

    public void Connect()
    {
        //Starts all the socket stuff..

        lock(cFieldVal)
        {
            MessageBox.Show(MyObject.cFieldVal);
            MyObject.cFieldVal=MyObject.cFieldVal+="x";
          //  StreamWriter MyStream = File.AppendText("MyFile.txt");
          //  MyStream.WriteLine(Input);
          //  MyStream.Close();
        }
    }
//...OTHER SOCKET RELATED FUNCTIONS GO HERE.
}

-- modified at 8:57 Wednesday 13th December, 2006

--EricDV Sig---------
Some problems are so complex that you have to be highly intelligent and well informed just to be undecided about them.
- Laurence J. Peters